Injection molding machine

A technology for injection molding machines and molding materials, which is applied in the field of injection molding machines, can solve the problems of large fluctuations in the quality of molded products, and achieve the effect of stable quality

Inactive Publication Date: 2017-06-30
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the past, the impact of fluctuations in the injection period in processes other than the compression process was amplified by the compression process, resulting in large fluctuations in the quality of molded products

Method used

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  • Injection molding machine
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Examples

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Embodiment Construction

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each of the drawings, the same or corresponding components are given the same or corresponding symbols and descriptions thereof are omitted.

[0019] figure 1 It is a figure which shows the state at the end of mold opening of the injection molding machine of one embodiment. figure 2 It is a figure which shows the state at the time of mold clamping of the injection molding machine of one embodiment. figure 1 and figure 2 In , the flow path of the molding material in the mold device 30 is simplified for convenience of description.

[0020] For example, if figure 1 and figure 2 As shown, the injection molding machine has a frame Fr, a mold clamping device 10 , an injection device 40 , an intermediate device 50 , an ejector device 60 and a control device 90 . In addition, the intermediate unit 50 may be included in the mold unit 30, or may not be included in the in...

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PUM

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Abstract

The invention provides an injection molding machine capable of stabilizing quality of finished products. The injection molding machine is provided with a detector, which is used to detect flowing of molding materials in a mold device; a control device, which is used to control the compression motion of compressing the molding materials in the cavity space of the mold device according to the detection result of the detector.

Description

technical field [0001] This application claims priority based on Japanese Patent Application No. 2015-191823 filed on September 29, 2015. The entire contents of this Japanese application are incorporated herein by reference. [0002] The invention relates to an injection molding machine. Background technique [0003] The injection molding machine described in Patent Document 1 advances the screw in the heating cylinder to perform a single injection process of injecting molten resin accumulated on the front end side of the screw into the mold, and starts injecting molten resin into the mold in the middle of the single injection process. The compression process in which the resin is given compression pressure. The injection molding machine starts the compression process when the measured advance distance of the screw reaches a preset value. [0004] Patent Document 1: Japanese Unexamined Patent Publication No. 2002-113753 [0005] Conventionally, the impact of fluctuations...

Claims

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Application Information

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IPC IPC(8): B29C45/76B29C45/57
CPCB29C45/57B29C45/76B29C2945/76083B29C2945/76494B29C45/77B29C2045/776B29C2045/1792B29C2945/76006B29C2945/76287B29C2945/76498
Inventor 雷磊山口毅秀中村彻
Owner SUMITOMO HEAVY IND LTD
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